Do you know these words?

• おとろえる（たいりょくが〜/きおくりょくが〜）

  to become weak (one's memory/strength) ; to lose one's strength/memory

• ろうがん

  presbyopia

• おいくつ

  how old (for asking about age)

• おとし

  age

• かなわない（びょうきには〜/としには〜）

  to give in to (illness/old age) ; to succumb ; cannot overcome